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Silver drill bit with reduced shank and treated flutes

Drill America

Drill America 7/8in HSS 1/2in Reduced Shank Silver and Deming Drill Bit pneumatic accessory

SKU CH-8SD1-862C5

A high-speed steel drill bit with a 1/2-inch reduced shank for drilling 7/8-inch holes in metal

  • Product typeDrill Accessories
  • 7/8 inch HSS drill bit bores large holes cleanly
  • 1/2 inch reduced shank fits standard drill chucks securely
  • Silver and Deming design handles heavy-duty drilling tasks
  • Surface treated flutes improve chip evacuation during use

7/8" HSS Reduced Shank Drill Bit

The Drill America Silver and Deming bit is a high-speed steel cutting tool designed for general-purpose drilling in metal, wood, and plastic. Its 1/2-inch reduced shank allows secure chucking in standard drill presses and large hand drills. Surface-treated flutes improve chip evacuation and reduce friction during operation. This accessory suits maintenance technicians and fabricators who need a single large-diameter hole maker.

7/8-inch capacity with 3-inch flute length

The bit creates a precise .8750-inch diameter hole with a flute length of three inches and an overall length of six inches. It handles through-holes in thick plate or deep blind holes in softer materials. The reduced shank limits use to chucks that accept 1/2-inch diameters, so it will not fit smaller 3/8-inch drill chucks. Buyers needing diameters larger than 7/8 inch or shank sizes smaller than 1/2 inch must select a different tool.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 64% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameDrill America
Product typeDrill Accessories

Questions about this item

Will the 1/2in reduced shank fit the chuck on my older 1/2in capacity drill press?

The reduced shank is sized at 1/2in so it seats directly in any standard 1/2in chuck without an adapter.

How can I confirm the bit is cutting true after I clamp it in the press?

Run the bit at low speed and watch the .8750 diameter cut; a steady, centred hole with no wobble shows it is running true.

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